Chemically fabricated magnetic quantum dots of InP:Mn

Article Abstract:

Quantum dots of InP:Mn are chemically prepared by following hot colloidal nanochemistry with starting precursors that obviate the need for external surfactant. Structural characteristics and analysis confirm that the magnetism in these quantum dots is not due to segregated binary MnP or MnO phases and that they truly represent a homogeneous dilute magnetic semiconductor.

Quantum theory, Quantum mechanics

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Field-directed self-assembly of magnetic nanoparticles

Article Abstract:

Fe3O4 nanoparticles in the size range of 8-12 nm are prepared and allowed to self-assemble on GaAs substrates in the presence of strong magnetic fields. A long range ordering is observed in which the particles self-assemble into a distribution of elongated clusters with a predominant orientation lengthwise along the field direction.

Magnetic fields, Ferromagnetism, Iron alloys

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Synthesis and magnetic properties of colloidal MnPt3 nanocrystals

Article Abstract:

The colloidal synthesis and magnetic properties of MnPt3 nanocrystals are reported. The nanocrystals are compositionally disordered with the face-centered cubic (fcc) A 1 phase. Magnetization measurements showed that the A 1 nanocrystals are paramagnetic and the L12 MnPt3 nanocrystals are superparamagnetic.

Analysis, Stoichiometry, Platinum compounds, Chemical synthesis, Structure, Magnetization

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